🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.53 AU - 0.53 AU

Year: 245 Days

Day: 45.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.53 AU - 0.57 AU

Year: 259 Days

Day: 30.7 Hours

Environment

Temp: -115 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.51 AU - 0.77 AU

Year: 326 Days

Day: 30.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.4

Radius: 11

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.68 AU - 0.8 AU

Year: 405 Days

Day: 13 Hours

Environment

Temp: -147 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,787,212 km

• M1: 136,882 km (0.075 R)
• M2: 502,050 km (0.07 R)
• M3: 870,061 km (0.1 R)
• M4: 1,451,997 km (0.062 R)
• M5: 1,840,203 km (0.103 R)
• M6: 2,315,625 km (0.057 R)
• M7: 2,851,934 km (0.119 R)
• M8: 3,332,592 km (0.073 R)
• M9: 3,767,772 km (0.114 R)
• M10: 4,254,115 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.3

Radius: 12.9

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.35 AU - 1.85 AU

Year: 1287 Days

Day: 7.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,787,212 km

• M1: 160,519 km (0.094 R)
• M2: 607,517 km (0.108 R)
• M3: 1,645,726 km (0.114 R)
• M4: 2,058,168 km (0.113 R)
• M5: 2,568,595 km (0.092 R)
• M6: 3,098,621 km (0.084 R)
• M7: 4,354,046 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199

Radius: 12.8

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.9 AU - 4 AU

Year: 4074 Days

Day: 7.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,787,212 km

• M1: 159,172 km (0.081 R)
• M2: 1,056,311 km (0.104 R)
• M3: 2,646,536 km (0.077 R)
• M4: 3,764,182 km (0.08 R)
• M5: 5,289,332 km (0.116 R)
• M6: 6,747,313 km (0.046 R)
• M7: 7,868,698 km (0.04 R)
• M8: 8,650,646 km (0.041 R)
• M9: 9,866,728 km (0.114 R)
• M10: 10,296,522 km (0.114 R)
• M11: 14,199,979 km (0.1 R)
• M12: 15,791,701 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.3

Radius: 9.7

Gravity: 9.43 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.96 AU - 5.6 AU

Year: 6645 Days

Day: 10.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 39,787,212 km

• M1: 120,725 km (0.1 R)
• M2: 635,492 km (0.083 R)
• M3: 1,048,531 km (0.074 R)
• M4: 1,693,448 km (0.114 R)
• M5: 2,262,967 km (0.086 R)
• M6: 2,716,847 km (0.07 R)
• M7: 3,059,426 km (0.101 R)
• M8: 3,663,502 km (0.065 R)
• M9: 7,012,400 km (0.082 R)
• M10: 8,184,799 km (0.062 R)
• M11: 9,079,992 km (0.081 R)
• M12: 11,997,600 km (0.092 R)
• M13: 12,758,903 km (0.117 R)
• M14: 13,726,203 km (0.097 R)
• M15: 16,588,609 km (0.108 R)
• M16: 19,752,155 km (0.08 R)
• M17: 20,126,748 km (0.075 R)
• M18: 21,123,070 km (0.11 R)
• M19: 22,965,816 km (0.112 R)
• M20: 23,380,202 km (0.104 R)
• M21: 25,087,713 km (0.039 R)
• M22: 26,694,094 km (0.116 R)
• M23: 30,308,828 km (0.097 R)
• M24: 32,336,477 km (0.054 R)
• M25: 32,962,096 km (0.095 R)
• M26: 34,237,268 km (0.066 R)
• M27: 35,655,605 km (0.094 R)
• M28: 35,988,311 km (0.093 R)
• M29: 37,683,554 km (0.117 R)
• M30: 38,028,826 km (0.094 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 552 - 14,474 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit